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Homing issue - prusa i3 Ramps 1.4 Marlin

Posted by peterv3210 
Homing issue - prusa i3 Ramps 1.4 Marlin
April 26, 2014 12:11PM
Hi,

Currently I'm on the verge of printing but for some reason i can't get my homing right.
When I + the X axis it moves to the left (endstop is on the left).
When I + the Y axis it moves towards me (endstop is my side).
When I + the Z axis it goes down (endstop in on the bottom).
When i home the printer is homes nicely and stays in the corners.
So this all is working as expected.

#define INVERT_X_DIR false // for Mendel set to false, for Orca set to true
#define INVERT_Y_DIR false // for Mendel set to true, for Orca set to false
#define INVERT_Z_DIR false // for Mendel set to false, for Orca set to true
#define INVERT_E0_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E1_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E2_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

But when i try a 20mm test cube is goes the wrong way. driving the carriages into itself.

So I tried to reverse the axis and the endstops but now it moves away from the endstops.

I just don't get it.

Can some help or point me to a good configuration tutorial?

Thanks in advance
Re: Homing issue - prusa i3 Ramps 1.4 Marlin
April 28, 2014 02:58PM
X should move to the right with a positive move.

Your Y endstop is in the MAX position, not the min but it is moving correctly. You will need to change Y Home Direction to 1 and change endstop plug on Ramps to Y+ instead of Y-.

Z should move up with +.



At this point, the only one you should change home direction on is Y. The X and Z need axis direction changed and check to see if the endstops are plugged into X- and Z- on Ramps.
Re: Homing issue - prusa i3 Ramps 1.4 Marlin
May 15, 2014 03:29PM
And remember that all you need to do to flip the axis is flip the plug-in on the motherboard.


Through self sustaining actions comes freedom


DIY Tech Shop
Re: Homing issue - prusa i3 Ramps 1.4 Marlin
May 16, 2014 07:17PM
beat me too it i was going say flip the motors around on the pins and plugs


Check my rubbish blog for my prusa i3

up and running
[3dimetech.blogspot.co.uk]
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